Cora Smith Papadakis: The catalyst for the story’s events and Frank’s love interest. Unhappily married to Nick, she is ambitious and manipulative, which transforms her into the story’s primary antagonist. Cora, repelled by her husband’s ethnic background, welcomes Frank’s rough sexuality and urges him to join her in killing Nick.

Nick Papadakis: A middle-aged, Greek-American man who owns a roadside diner. He is portrayed as naïve and trusting. Nick remains unaware of the passion between his wife and Frank, seeing them both as people he admires.

Madge Gorland: An attractive and intelligent lawyer who becomes involved in Frank’s case. She is confident and independent, providing a contrast to Cora.